105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#include <string>
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#include "kernel/kernel_exception.h"
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#include "library/print.h"
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#include "library/io_state.h"
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namespace lean {
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static io_state * g_dummy_ios = nullptr;
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io_state const & get_dummy_ios() {
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return *g_dummy_ios;
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}
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io_state::io_state():io_state(mk_print_formatter_factory()) {}
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io_state::io_state(formatter_factory const & fmtf):
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m_formatter_factory(fmtf),
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m_regular_channel(std::make_shared<stdout_channel>()),
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m_diagnostic_channel(std::make_shared<stderr_channel>()) {
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}
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io_state::io_state(options const & opts, formatter_factory const & fmtf):
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m_options(opts),
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m_formatter_factory(fmtf),
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m_regular_channel(std::make_shared<stdout_channel>()),
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m_diagnostic_channel(std::make_shared<stderr_channel>()) {
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}
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io_state::io_state(io_state const & ios, std::shared_ptr<output_channel> const & r, std::shared_ptr<output_channel> const & d):
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m_options(ios.m_options),
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m_formatter_factory(ios.m_formatter_factory),
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m_regular_channel(r),
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m_diagnostic_channel(d) {
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}
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io_state::io_state(io_state const & ios, options const & o):
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m_options(o),
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m_formatter_factory(ios.m_formatter_factory),
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m_regular_channel(ios.m_regular_channel),
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m_diagnostic_channel(ios.m_diagnostic_channel) {
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}
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io_state::~io_state() {}
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void io_state::set_regular_channel(std::shared_ptr<output_channel> const & out) {
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if (out)
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m_regular_channel = out;
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}
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void io_state::set_diagnostic_channel(std::shared_ptr<output_channel> const & out) {
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if (out)
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m_diagnostic_channel = out;
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}
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void io_state::set_options(options const & opts) {
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m_options = opts;
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}
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void io_state::set_formatter_factory(formatter_factory const & f) {
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m_formatter_factory = f;
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}
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LEAN_THREAD_PTR(io_state, g_ios);
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io_state const & get_global_ios() {
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if (g_ios)
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return *g_ios;
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else
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return get_dummy_ios();
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}
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scope_global_ios::scope_global_ios(io_state const & ios) {
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m_old_ios = g_ios;
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g_ios = const_cast<io_state*>(&ios);
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}
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scope_global_ios::~scope_global_ios() {
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g_ios = m_old_ios;
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}
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char const * formatted_exception::what() const noexcept {
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if (!m_what_buffer) {
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options const & opts = get_global_ios().get_options();
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std::ostringstream out;
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out << mk_pair(m_fmt, opts);
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const_cast<formatted_exception*>(this)->m_what_buffer = out.str();
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}
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return m_what_buffer->c_str();
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}
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options const & get_options_from_ios(io_state const & ios) {
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return ios.get_options();
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}
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void initialize_io_state() {
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g_dummy_ios = new io_state(mk_print_formatter_factory());
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}
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void finalize_io_state() {
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delete g_dummy_ios;
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}
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}
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